| 用于计算机辅助设计的晶闸管模型 |
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| 引用本文： | 李晓明,黄汝激. 用于计算机辅助设计的晶闸管模型[J]. 北京科技大学学报, 1987, 0(4) |
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| 作者姓名： | 李晓明 黄汝激 |
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| 作者单位： | 北京钢铁学院电路电子教研室(李晓明)，北京钢铁学院电路电子教研室(黄汝激) |
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| 摘 要： | 本文讨论了用于功率电子电路的晶闸管模型的建立方法。给出了一个适用于计算机辅助设计的非线性集中参数的晶闸管等效电路模型。 模型的建立是基于对器件内部载流子运动的物理过程进行模拟,分析了器件的少数载流子注入;空间电荷区内部载流子的产生与复合;雪崩倍增效应;基区宽度调制效应及电荷存贮效应。将反映这些物理过程的数学公式用非线性电路元件表示,组成了由非线性电阻、电容及受控电流源所构成的晶闸管模型。 利用这个模型可以分析晶闸管开关过程的动态非线性特性。
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| 关 键 词： | 晶闸管 模型 计算机辅助设计 |
Thyristor Model for Computer Aided Design |
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| Li Xiaoming Huang Ruji. Thyristor Model for Computer Aided Design[J]. Journal of University of Science and Technology Beijing, 1987, 0(4) |
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| Authors: | Li Xiaoming Huang Ruji |
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| Affiliation: | Li Xiaoming Huang Ruji |
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| Abstract: | This paper describes the method of constructing the model for thyri-stor device which used for power electric circuits and presents a nonlinear lumped equivalent circuit model for it.In modelling of the thyristors, it is based on the analog of the physical process of carriers moyement inside the device. The following facts are also analysed:( 1 ) Injection of minority carriers in device. ( 2 ) Generation and recombination of carriers in space charge region.( 3 ) The effects due to the avalanche multiplication basewidth modulation, and charge storage.The mathematical formulas describing these physical process are replaced by corresponding nonlinear elements and an equivalent circuit model for a thyristor is formed which consists of nonlinear resistors, nonlinear capacitors and controlled current sources.Using this model, it is possible to analyse the dynamic nonlinear characteristics of thyristor's ON-OFF process. |
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| Keywords: | thyristor model computer aided design (CAD) |
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